this post was submitted on 04 Aug 2024
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arch-chroot
your mounted root filesystem/boot
mkinitcpio -p linux
Steps 1,2 and 3 are the entry way to solve all "unbootable Arch" problems by the way, presuming you know what needs to be changed to fix it of course.
I'd gladly take an Arch wiki article
https://wiki.archlinux.org/title/Chroot
+
https://wiki.archlinux.org/title/Mkinitcpio
For a while, I had to do this after every kernel update
Turns out, i accidentally had two
/boot
folders. One was is own partition, and the other was on the rootfs partition. When Arch booted, the separate partition was mounted over the rootfs/boot
dir, "shadowing" itExcept, UEFI / GRUB was still pointing to the rootfs partition. So when pacman installed a kernel update, it wasn't able to update the kernel that UEFI was booting, but it was able to update the kernel modules
Kernel no likey when kernel modules are newer than the kernel itself